Valve.



No. 855,517. PATENTED JUNE 4, 1907. D. LIPPY 6r. A. NIGODBMUS.

VALVE.

APPLIGATION FILED MAY 16. 1906.

MHz/Wd a ttozwuj narran aimeras Parana onirica.

DAVID LIPPY AND ABRAHAM NIOODEMUS, OF MANSFIELD, OHIO, ASSIGN- ORS OFONE-THIRD TO ALBERT K. SHAUOK, OF

M ANSFIELD, OHIO.

VLVEn Specification of Letters Patent.

-Patented June 4, 1907.I

Application filed May 16, 1906. Serial N0. 317,079.

the annexed drawings, making a part of thisspecification, and to thenumerals and figures of reference marked thereon, in whichk Figure l isa vertical section showing the valve partially open. Fig. 2 is anenlarged vertical section showing a portion of the valve and its seat.

The present invention has relation to valves designed for water or steamor for any purpose for which valves of this lkind can be used, 'as theinvention has more special reference to the valve -seat or out 0H andits nature consists in the diiierent parts and combination of partshereinafter described and pary ticularly pointed out in the claims.

Similar numerals of reference indicate corresponding parts in all thegures of the drawing.

In the accompanying drawing, l represents the valve body, which may beof any desired form. The valve-body is provided with the integral valveseat or flange web 2, which is located in the valve body substantiallyas shown in the drawing. Upon the flange seat web is located the annularflange or valve seat proper 3, which is tapered upon its inner and outerperipheries from its base upward to within ashort distance of its top orin other words the flange `seat is provided with tapered faces 4 andparallel faces 5, the parallel faces being located upon the upperportion of the valve seat flange proper, said valve seat flange beingformed as just above described for the purpose hereinafterl specified.The valve 6 is provided upon its under side with the annular groove 7,which annular groove is tapered at its top portion and its lower portionprovided with straight or parallel faces or walls 8. By providing thevalve seat iange with the tapered faces and tlie parallel faces, anangle will be formed upon the valve seat flange, which angle is adaptedfor contact groove.

The groove 7 and the seat flange are and we do hereby declarel with thewalls of thef formed as above described for the purpose of providingmetal contact at two different horizontal planes, or in other words thelower or tapered portion of the annular seat flange is brought intocontact with the parallel walls of the annular groove and the portion ofthe annular seat flange provided with the parallel faces is brought intometal contact with the tapered groove formed in the valve, by whicharrangement two distinct and narrow contact produced. By providing thedoulines are ble taper there are two contact points for the taperedportion of the valve seat and two contact portions for the straight orparallel portion of the valve seat against the tapered portion orwallsof the annular groove inthe valve, thereby forming four distinct andwhat might be termed dull edged or close contact points. In the drawingwe have illustrated both the innerand outer peripheries of the .annularseat flange and the annular groove tapered, but we do not desire to beconfined to this exact arrangement, owing to the fact that slightmodifications might be made whereby the dull edged metal contact couldbe produced without the exact construction shown. It will be understoodthat by our peculiar arrangement any grit or dirt or other foreignsubstance will not interfere with the proper seating of the valve uponits seat. It is well understood that when a valve is brought down uponits seat where considerable surface is in contact as between the valveand the seatany foreign substance will have a tendency to prevent theproper seating of the valve. But by our peculiar arrangement any foreignsubstance such as mud or sand or flakes of linie will be .sheared orscraped from the contact surface thereby allowing a clear contactconnection at all times and under all circumstances as between thevalveseat and the valve.

To the valve 6 is attached the nut 9 by means of suitable screw threads,which nut is for the purpose of properly' connecting the valve stern 10,the nut 9 being so located and arranged that the valve stein 10 is free,to rotate independent of the valve. The valve4 stem 10 is screwthreaded and the screw threaded portion located through the screwthreaded aperture 11 in the valve body cap 12, which valve body cap isof the ordinary construction. It will of course be underportion of theannularv IOO 9 groove, and thestraight faced Walls of the stood thatrotating'the valve sternV 10 by means of the ordinary valve Wheel 13 inone direction will open the valve, and rotating in the oppositedirection will close or seat the tact with the tapered faces of theannular seat lange, substantially as and for the purvalve. The. valvecap 1 2 is provided with poses specified. v the ordinary packing cap 14,said parts being 3. ln a valve body, an annular valve-seat ofy theordinary construction. flange, said valve-seat flange provided with a 4oHaving fully'described ourinvention,what taperedbase, a valve providedWith anan- We claim as new and desire to secure by Letnular groove, saidgroove tapered a portion of lo ters Patent, is I' its depth,l and theannular seat flange adapt- 1. In .a valve, a valve body and a valve edto be entered in the groove and adapted seat Web provided with anannular valve seat for contact at its angle part, substantiallyv as 45flange', saidflange provided with a strai ht' and for the purposesspecified. faced portion anda tapered portion, a va ve 4. In avalve-seat of the class-described, a

I5 provided with an annular groove having valve body andan annularvalve-seat flange straight and tapered Walls and the flange of formedintegral therewith, said valve seat the valve body'adapted'to be seatedin the iiange consisting of a tapered base portion 50 groove, saidstraight portion of the fiange and a straight portion and a valveadapted adapted to be` seated against' the tapered to move to and fromthe valve-seat fiange 20 Walls of the roove, and the angled portion of,and the valve provided with a groove its conthe flange o 'the valvebody seated upon the tour corres onding with the shape of the4 strai htWalls of the groove, substantially as valve-seat ange and thewall of thegroove 55 and or thel purposes specified. adapted for contact at theangled -portion of 2. In a valve, thecombinati0n of a valve .the flange,Substantially as and for the pur- 25 body, a valve seat therefor,consisting of an pose specified. annular valve adapted to be actuated toand In testimony that We claim the above, We from the valve seat, saidvalve provided with have hereunto subscribed our names vin the 6C anannular groove,v the valve-seat flange presence of twowitnesses. adaptedto enter the roove, said annular 1 DAVID LIPPY.

3o flange and vgroove provi ed With tapered and AlB'RAIvIAlVINICODEMUS.'

Straight portions and the'straight portions of Witnesses:

the annulan: alve-seat ange adapted for enp i A. A. DOUGLASS,gagernentyyl thetapered portions of the'.: 1j. LUEELA A/NDREWS.

annular groove in the valve Aadapted for con- 35.

